Toothbrush head



FIG. 1 is a front and right side perspective view of a toothbrush head showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines shown in the drawings depict the environmental structure of the toothbrush head and form no part of the claimed design. 

CLAIM The ornamental design for a toothbrush head, as shown and described. 